CVE-2026-0752

Name: CVE-2026-0752
Creator: NVD / NIST
Published: 2026-02-25T21:16:36.33+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.31%

Last modified Jun 17, 2026

CVE-2026-0752 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.2 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that under certain circumstances, could have allowed an unauthenticated user to inject arbitrary scripts into the Mermaid sandbox UI.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.2 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that under certain circumstances, could have allowed an unauthenticated user to inject arbitrary scripts into the Mermaid sandbox UI.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.31%

22.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 16.2.0, < 18.7.5
Gitlab	Gitlab	>= 18.8.0, < 18.8.5
Gitlab	Gitlab	18.9.0

References

https://about.gitlab.com/releases/2026/02/25/patch-release-gitlab-18-9-1-released/Release Notes, Vendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/585371Broken Link
https://hackerone.com/reports/3473276Permissions Required

Timeline

Published: Feb 25, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-0752?

How severe is CVE-2026-0752?

CVE-2026-0752 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.

How do I fix CVE-2026-0752?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-0752?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST